spec-add

spec-add is a skill for Claude Code, Codex from catlog22/Claude-Code-Workflow. It costs 20 tokens per session (5,106 once invoked), scanned A, original, MIT.

Add specs, conventions, constraints, or learnings to project guidelines interactively or automatically.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/catlog22/claude-code-workflow/spec-add
Any agent
npx skills add catlog22/Claude-Code-Workflow --skill spec-add
Clone the repo
git clone --depth 1 https://github.com/catlog22/Claude-Code-Workflow

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for spec-add

README.md
[![agentmods](https://agentmods.dev/badge/skills/catlog22/claude-code-workflow/spec-add.svg)](https://agentmods.dev/skills/catlog22/claude-code-workflow/spec-add)
Your own site
<a href="https://agentmods.dev/skills/catlog22/claude-code-workflow/spec-add"><img src="https://agentmods.dev/badge/skills/catlog22/claude-code-workflow/spec-add.svg" alt="Measured on agentmods" height="20"></a>
Per session 20 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,106 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00020 $0.05106
Opus 5 $0.00010 $0.02553
Sonnet 5 $0.00004 $0.01021
Haiku 4.5 $0.00002 $0.00511

Measured today against content hash 501721e11561, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

spec-add scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured today.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.codex/skills/spec-add/SKILL.md · 621 lines

How it starts

The opening of the file, as written. The whole thing — 621 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Spec Add Command

Overview

Unified command for adding specs one at a time. Supports both interactive wizard mode and direct CLI mode.

Key Features:

  • Supports both project specs and personal specs
  • Scope selection (global vs project) for personal specs
  • Category-based organization for workflow stages
  • Interactive wizard mode with smart defaults
  • Direct CLI mode with auto-detection of type and category
  • Auto-confirm mode (-y/--yes) for scripted usage

Use Cases

  1. During Session: Capture important decisions as they're made
  2. After Session: Reflect on lessons learned before archiving
  3. Proactive: Add team conventions or architectural rules
  4. Interactive: Guided wizard for adding rules with full control over dimension, scope, and category

Usage

$spec-add                                                     # Interactive wizard (all prompts)
$spec-add --interactive                                       # Explicit interactive wizard
$spec-add "Use async/await instead of callbacks"              # Direct mode (auto-detect type)
$spec-add -y "No direct DB access" --type constraint          # Auto-confirm, skip confirmation
$spec-add --scope global --dimension personal                 # Create global personal spec (interactive)
$spec-add --dimension specs --category exploration            # Project spec in exploration category (interactive)
$spec-add "Cache invalidation requires event sourcing" --type learning --category architecture

Parameters

Parameter Type Required Default Description
rule string Yes (unless --interactive) - The rule, convention, or insight to add
--type enum No auto-detect Type: convention, constraint, learning
--category string No auto-detect / general Category for organization (see categories below)
--dimension enum No Interactive specs (project) or personal
--scope enum No project global or project (only for personal dimension)
--interactive flag No - Launch full guided wizard for adding rules
-y / --yes flag No - Auto-categorize and add without confirmation

Read the full file on GitHub · 621 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. today First seen · 621 lines · 20 tokens per session scan A 501721e11561

Subscribe to this mod's changes

spec-add is a skill published in the GitHub repository catlog22/Claude-Code-Workflow (2,133 stars, last pushed 2mo ago), licensed MIT. It adds 20 tokens to every session and 5,106 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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